Qubit-induced phonon blockade as a signature of quantum behavior in nanomechanical resonators

By Yu-xi Liu, Adam Miranowicz, Y. Gao, J. Bajer, Chang-pu Sun, Franco Nori. 2009

133 citations recorded by the source corpus.

The observation of quantized nanomechanical oscillations by detecting femtometer-scale displacements is a significant challenge for experimentalists. We propose that a phonon blockade can serve as a signature of quantum behavior in nanomechanical resonators. In analogy to the photon blockade and Coulomb blockade for electrons, the main idea for phonon blockade is that the second phonon cannot be excited when there is one phonon in the nonlinear oscillator. To realize phonon blockade, a superconducting quantum two-level system is coupled to the nanomechanical resonator and is used to induce the phonon self-interaction. Using Monte Carlo simulations, the dynamics of the induced nonlinear oscillator is studied via the Cahill-Glauber s-parametrized quasiprobability distributions. We show how the oscillation of the resonator can occur in the quantum regime and demonstrate how the phonon blockade can be observed with the currently accessible experimental parameters.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/a3c0091b53b9507277d6451608c6991f53e4f7de

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Franco Nori
2. Sahel Ashhab
3. J. You
4. Adam Miranowicz
5. Z. Xiang
6. Yu-xi Liu
7. I. Georgescu
8. K. Bliokh

In Electrical and Electronic Engineering

1. Sahel Ashhab
2. Yu-xi Liu
3. Franco Nori
4. Adam Miranowicz

Citations in the corpus

• Two-photon and three-photon blockades in driven nonlinear systems (2012, background): “An analogous phenomenon of phonon blockade was predicted for an artificial superconducting atom coupled to a nanomechanical resonator [18].”
• Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems (2012, background): “…and couple them to each other (Armour et al., 2002; Buks and Blencowe, 2006; Cleland and Geller, 2004; Etaki et al., 2008; LaHaye et al., 2009; Liu et al., 2010; O’Connell et al., 2010; Pugnetti et al., 2009; Shevchenko et al., 2012; Sun et al., 2006; Teufel et al., 2011; Wang et al., 2008;…”